Improvement in stave-jointing machines



4 No. 42,467. PATENTBD APN-26, 1864,

* y P. A. FINN.

sfmv JUINTING MACHINE;

FELlX A. FINN, OF NEV YORK, N. Y.

lMPPtOl/EMENT lN STAVE-JOINT-lNG MACHINES.

Specification.forming partof Letters Patent No. 112,46?, dated April 26, ISG/1.

l To all whom it may cron/cern,.-v

Be it known that I, FELIX A. FINN, of the city, county, and State of New York, have invented-certain new and useful Improvements in the Machine for Jointing Staves; and l do hereby declare that theV following is a full,

clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specitication, in which- Figure lis a side elevation, and Fig. 2 a cross vertical section taken at the line A u of Fit-t1- The same letters indicate likeparts in each of `the figures.

ln the said machine the staves to be jointed are placed one by one 011 an endless chaincarrier, which carrier is to be formed as to constitute in its length several beds, each to re. eeive a stave, such beds being of a curvature equal to orA corresponding with the bilge ot' the stave when completed, and making part 'of the intended barrel or cask. As the end' less .chain. earrier travels along, each stave, with one-fend inserted under a shoulder or holder on the carrier, passes under apressure- 'roller which bends it to the curvature of the bed on which ,it is placed bythe attendant, and, so bent to the required bilge,it is moved along by the continuous motion ofthe carrier to the action of two inclined circular saws, by which the' two' joints are cut to the required bevels; and as the endless chain-carrier has severalsuch beds the staves are in succession bent, jointed, and delivered from the machine by a continuous motion of the chain-carrier.

'l'he shafts of the two circular saws are mounted each in a separate swinging frame, and the two frames are lmounted on one and the 'same arbor, on which they can turn, both having the same axis of motion so situated vrelatively to the plane of motion of the end less chaincarrier that the 'planes of the two circular saws, when projected,` will pass.

through the axis of thearbor on which the two frames can turn, so that whatever inclination may be given to the two saws to suitvarious widths of staves the joints cut will always be of the required bevel. The said swinging frames rest on two cams mounted on a cro`ss-shaft, so that by turning the said cam-shaft the attendant can readily adjust'- the inclination of4 thc saws to any width ot`- stave. 4

In the accompanying; drawings, a. represents a suitable frame, and!) an endless chain coni stituting the carrier. This chain is composed of links c, connected together near their. lower edges by intermediate'links, d,whieh are'much thinner than and received in grooves made in the under or inner surface Vof the linksc, and project below them. When the chain b is straight, the ends of any two ot the links c will he in contact with each other. This endf less chain passes around two polygonal wheels, e e, one at each end ofthe frame. The upper part rests and slides on an upper straight this bar and the periphery ofthe two wheels, Ao e, are'grooved to' receive that part of theintermediate links, d, which project below the under surface of the links c. The groove in the said barf thus performs the oice ot' guiding the chainv in a straight line. f

4, rlhe required motion is given to the endless chain b by a driving-shaft, g, which carries a worm, h., that engages the cogs of a wheel, i, on the shaft of one of the wheels, e. The chain b, as represented, constitutes tive beds,

bed j in the proportions represented is coin- `posed of six of the links c, the links being gradually thicker lfrom each end to the middle, making the upper surface of a conveXi-ty simbarrel or Cask, and the tirst link of each bed (the chain traveling in the direction of the arrow) is formed with a projecting lip,"7:, to receive and hold down one end of a stave.

Above thel chain b there is a roller,.i, mount- ,ed in a lever, m, having' its fulcrutn. in suitable standards,n,and by suitable wei ghts or sprin gs applied to the lever the roller l is made 'to press upon and bend the stave into contact with the convex surface of the bed as it is moved along under the roller by the chain.

rlhe two circular saws, o o-one oneach side of the roller l-are mountedeach on the inner end of a shaft, p, which carriesba pulley to re ceive motion by a belt from some suitable dr'ivingshaft below vand each of the two shafts, p, is mounted in a frame, q, and the inner'ends ot'- the frames are mounted 'and turn on a fixed arbor, i', below the bar f of the frame and parallel therewith, so that the two frames can turn on the said arbor. Below the harbor @and at right angles to it, thereis a bar, j', ofthe frame, and the upper surface of j, but the number may be changed. Each ilar to the bilge of the stave of the intended' cross-shaft, s, which carries two cams, t t, of

similar form, so placed that the outer end of each saw-frame will 4rest on one of the said cams, so that by turning the said cross-shaft s, and with it the two cams, the Vinclination of the two saws can be increased or diminished l'-t'o suit the width of the staves. as they in turn approach the saws. vThat the attendantmay perform this operation readily thereis ahand wheel, u, on a longitudinal, shaft, o, having, a

. worm, w,'which eng-ages a cog-wheel, w, on

the cam-shaft.

From the foregoing lit will be seen that when the saw-s are rotating theendless chain- -carrier travels with a continuous motion. l each convex bed of the chain approaches the saws the attendant can put a stave onto itby inserting the end ofthe stave'under the lip or shoulder, and the stave will then be drawn under the pressure-roller,bent'to the 'eurvai ture of the bed, and, thus bent, passed between the two saws and jointed, and -asone I stave is .being thus jointed another 'stave 'is put onto the next bed, ready topass in turn to the saws. l For jointing staves which are to be used in making buckets, tubs, ehurns, and other artieles of a tapered form, I contemplate 'making each bed in the form of a double.. incline' plane, instead ofgcnrved, so that each bed will receive two staves, end to end, which will be jointed tapering,

What I claim `as my invention, and desire to secure by Letters Patent, isv The endless chain of beds, substantially as described, iu combination with the circular beveling-saws, substantially 'as and for the purpose set forth.

Witnesses WM. H. Bisi-10P, A. DE LACY.

FnLiX A. FINN. 

